For any company, software solutions represents an important factor for the business success. This is why you should be very careful when you buy software for your company. In most cases it is very hard to find a software solution that has all the features you need. This is why it is better to have your own custom software.
When you have to chose a custom software development company you should know very well what you need and what you are asking for. Most of the custom software development companies will develop your software exactly as you asked for without any project analysis. In this case the software may depend on the platform it is installed and many other factors. This is not good for the business. Custom software development needs a complete project analysis, based on the client requirements, to be used anytime, anywhere.
On the net you can find many custom software development companies but only few of them will match your criteria. And fewer will give you warranty and full technical assistance for the software...